Chinanews.com, Beijing, July 15: Since the flood season in June, the heavy rainfall in the middle and lower reaches of the Yangtze River has entered a "wheel battle". In just one and a half months, seven rounds of heavy rainfall came in turn. "Super alarm", "highest historical period", "refreshing historical extreme value", rivers and lakes in many areas in the south and rainfall continue to hit new highs.
According to the weather forecast, from the 14th to the 15th, the middle and lower reaches of the Yangtze River will usher in the strongest period of a new round of precipitation. The Poyang Lake, Dongting Lake, Taihu Basin and parts of the Yangtze River face a new wave of flood control tests.
On the afternoon of July 11th, the Jiangxi polder in Poyang, Jiangxi, rescuers worked in shifts to prevent floods. China News Service reporter Jiang Tao
The strongest time! This wave of rain affects 9 provinces
A new round of heavy rainfall is lining up, and the middle and lower reaches of the Yangtze River will face the seventh strong rainfall since the flood season. As of the 12th, the average rainfall in the Yangtze River Basin was 403 millimeters, 49% more than the same period in normal years, the first since 1961.
The Central Meteorological Observatory estimates that from 14 to 16 days in eastern Sichuan, Chongqing, northern Guizhou, Hubei, southern Henan, Anhui, southern Jiangsu, Shanghai, northern Zhejiang and other regions, the cumulative rainfall will be 100-180 mm, and the local rainfall may reach 200-300 mm. . This will also be the seventh round of heavy rainfall encountered in the middle and lower reaches of the Yangtze River since the floods this year.
Source of National Precipitation Forecast: China Meteorological Administration
During this round of heavy rainfall, there will be heavy rain in nine southern provinces, with the strongest rainfall periods concentrated on the 14th and 15th. Especially on the 15th, the rain along the Yangtze River will increase rapidly, and the rainstorms will be combined into a range, southern and eastern Sichuan, western and northern Chongqing, most of Hubei, southern Henan, central Anhui, southern Jiangsu, northern Zhejiang and Shanghai to Shanghai There will be heavy rain, local heavy rain.
This heavy rainfall has a high degree of overlap with the area covered by the previous heavy rainfall. The Yangtze River Basin is still the main area of influence, which brings considerable pressure on the flood prevention of the coastal provinces and cities.
On July 9, the lake water was flooded with the "Dongting Lake" stele. Photo by Yang Huafeng
Heavy rains bless the rising pressure of the three great lakes in the south
After another round of heavy rainfall, the water levels of major southern lakes such as Dongting Lake, Poyang Lake, and Taihu Lake are rising continuously. The lower reaches of the middle and lower reaches of the Yangtze River and the Dongting Lake and Poyang Lake are all super alarmed. How will the Three Great Lakes be affected by a new round of heavy rainfall?
At present, although the flood peaks in the middle and lower reaches of the Yangtze River have passed through the Chenglingji to Datong River section, the water level in the Poyang Lake area remains high. At 10 o'clock on the 14th, the water level at the Xingzi station was 22.45 meters (super alert 3.45 meters). The Poyang Lake Hydrology Bureau of Jiangxi Province has Red flood warnings were issued for several consecutive days.
Poyang Lake, which maintains a high water level, is becoming larger. Satellite remote sensing monitoring results show that the area of the main body of Poyang Lake and its surrounding waters "grows" from 352 square kilometers to 4206 square kilometers in 7 days from July 2 to July 8, the largest in 10 years.
Due to the continuous over-alarm of the water level of the Jiujiang section of the Yangtze River, it has a supporting effect on the water level of Poyang Lake, and the floods of the five major tributaries gradually reached Poyang Lake. Under the blessing of this round of heavy rainfall, the water level of Poyang Lake will continue to rise in the next few days. The inundation area of the waters will gradually expand outward from the five major tributaries of Poyang Lake and other small and medium-sized rivers. The relevant dikes are under greater pressure and the surrounding farmland and towns are at greater risk.
The Taihu Lake Basin is located on the southern edge of the Yangtze River. There are dozens of rivers connected to the Yangtze River, and the Yangtze River is an important channel for flood discharge in the Taihu Lake Basin.
Affected by the Meiyu River in Jiangnan, Taihu Lake formed the first flood of this year on June 28. As of 8 a.m. on July 14, the average water level of Taihu Lake was 4.45 meters, and it had been an alarm for 17 consecutive days. Although the water level has not yet touched the guaranteed water level of 4.65 meters, it has exceeded the warning water level of 3.8 meters by 0.65 meters.
Facing a new round of heavy precipitation, the Jiangsu Provincial Department of Water Resources predicts that the water level in the Taihu Lake area will approach the guaranteed water level of 4.65 meters.
In recent days, the main gates of Taihu Lake have also increased flood discharge. At 10 a.m. on July 13th, the flow of Taihu Gate, the largest spillway of Taihu Lake, has reached 700 cubic meters per second, which is more than double the usual time.
Looking at Dongting Lake again, Dongting Lake not only carries the collection of Xiang, Zi, Yuan, and Li rivers, but also connects with the Yangtze River, and the water system network is complex.
At present, the water levels of Xiangshui, Zishui, and Yuanshui mainstreams have fallen, the waters of Lishui mainstream and West Dongting Lake have risen, the water level of South Dongting Lake has fallen slowly, the water level of East Dongting Lake is still rising slowly, and the water level of each hydrological station around Dongting Lake still exceeds the warning level. Water level.
Although Dongting Lake was not affected by direct heavy rainfall, Ma Xuejian, chief forecaster of the Central Meteorological Observatory, analyzed that due to the relatively high water level in the main stream of the Yangtze River, the flood control situation in the middle and lower reaches of the Yangtze River, including Poyang Lake, Dongting Lake and Taihu Lake Basin, remains relatively severe.
The picture shows the aerial photography of Wuhan Jiangtan on the 12th. The "Pavilion" has become "Liang". (Photo/Source of Li Bichun: China Weather Network)
worry! The Yangtze River may now be a "multiple flood peak"
Dongting Lake and Poyang Lake are like two "big water basins" tied to the Yangtze River. "There is a flood discharge from the Dongting Lake on the top and a top support from the Poyang Lake underneath. The water level in the middle section of the Yangtze River is high and the flood prevention situation is severe." Wang Zhangli, deputy director of the Department of Flood and Drought Disaster Prevention of the Ministry of Water Resources, introduced.
On the afternoon of the 13th, the Hydrology Bureau of the Yangtze River Commission issued a message saying that the flood peaks in the middle and lower reaches of the Yangtze River had passed the section from Hankou to Jiujiang. At the Hankou station on the main stream of the Yangtze River, the water level of Hongfeng is 28.77 meters. The current time of the peak is 23:00 on July 12.
However, under the influence of this round of heavy rain coming from the 14th to the 16th, experts said that the possibility of the formation of a "multiple flood peak" in the Yangtze River was not ruled out. That is, the water level of the Hongfeng peak in the previous round did not drop significantly, and the Hongfeng peak in the latter round came again, thus forming a "duplex" situation in which a wave of flood peaks overlapped.
Hydrological experts explained that if there are continuous heavy rains in the upper reaches of the Yangtze River in Chongqing in the next few days, after the flood enters the Three Gorges, the discharge will increase and the amount of rainstorms in the Dongting Lake basin will increase.
Firefighters use red plastic basins to transfer young children. Image source: Fire and Rescue Bureau of the Ministry of Emergency Affairs
Continuously fighting to keep warm news from the levee flood
Since the flood season, floods have caused many polders to break up. As heavy rainfall approaches, flood control has entered a critical period, and flood prevention and rescue work are also expedited day and night.
After 83 hours of hard work, on the evening of the 13th, Wenlong Daowei in Poyang County, Jiangxi Province was torn to a 127-meter breach by the flood to complete Helong. The overwhelming decision here resulted in the flooding of more than 15,000 mu of cultivated land and 6 villages, and the transfer of tens of thousands of villagers.
The Zhenggong Pagoda Section of the Jingzhu River Embankment in Huaqiao Town, Wuxue City, Hubei Province suffered a rupture of nearly 40 meters on the morning of the 8th. More than 6,000 people in 4 villages of Huaqiao Town were affected and more than 10,000 acres of good land were flooded. After 25 hours of construction rush repairs by the army officers and rescue members, this execution was also successful.
Right now, all localities are stepping up the progress of flood control projects, trying their best to prepare for the "head-on" before a new round of precipitation arrives. The continuous fighting in the water has caused the militia’s feet to wrinkle. The retrograde figures of firefighters everywhere not only strengthened the dam, but also gave the victims a sense of security.
On the 14th, a video of the “Little Red Boat” in a flood was swiped on the screen. The video was taken on July 12th. A 9-month-old child in Guizhong Village, Poyang Town, Shangrao, Jiangxi, had a sudden illness and needed urgent medical treatment. The Flood Rescue and Rescue Commando of Ganzhou City Fire and Rescue Detachment rushed to the scene for a search and rescue transfer.
When the doctor encountered a flood and blocked the road, the firefighter used a red plastic basin as a boat, placed the baby in the "small red boat", carefully traversed the waist-high flood, and escorted the child and his grandmother to a safe area all the way to hand over Medical staff.
Many netizens left a message in the video news: "When a cute person meets a cute baby, we are at ease with you in front." (End)